Razor blade



oct. zo, 1942. MONNET 2,299,104

RAZOR BLADEV Filed May 20, 1941 INVENTOR,

f4 T TOE/VEKS Patented Oct. 20, 1942 RAZOR BLADE Georges Monnet, NewYork, N. Y., assigner to Guardian Merchandising (lorperation,A Montreal,Quebec, Canada, a corporatlon of Quebec,

Canada.

Application May y20, 1941, Serial No. 334,256

4 Claims. (C l.

This invention relates to vrazor blades Yfor safety razors.

` Razor blades now in use consist of steel and sink when dropped intowater. It is a lmatter of general experience that the disposing of razorblades is a comparatively' diiicult l and incon-` venient procedure.`-They are liable Ytocaus'e injuries if left in waste'baskets andVgarbage cans i and they clog the passages of drain pipes'and plumbing.Fur-thermo'rait is difficult t'o locate and recover a lrazor blade if itis dropped into` water while shaving.

An object of the present invention -is the provision of a razorbladewhich will float in water, so that it can be convenientlyY recovered ifdropped by accident into a water-lled sin-k, and

so that it can be conveniently disposed of by oating in watercirculating through drain pipes, plumbing and the like.

Other objects of the presen-t invention will become apparent in thecourse of the" following specification.

The objects of Vthe present invention may be realized through theprovision of a razor blade comprising a steel portion provided with ashaving edge or edges and :a coating consisting of a comparatively lightsubstance or substances, the total weight and specic gravity of theblade being such that the blade will float in water.

The coating may be applied to one or both surfaces of the steel portionof the blade and may be so disposed thereon that the clamping elementsof the safety razor will engage the steel portion of the blade and notthe coating, so that the coating will in no way interfere with theclamping and the adjustment of the blade upon the safety razor.

While any light material may be used for the coating, which incombination with the steel portion of the blade will prevent the bladefrom sinking in water, it was found advisable to employ layersconsisting of comparatively small cork particles joined together by anysuitable adhesive known in the art and capable of forming a permanentconnection between the coating and the steel portion of the blade.

The invention will appear more clearly from the following detaileddescription when taken in connection with the accompanying drawingshowing, by way of example, preferred embodiments of the inventive idea.

In the drawing:

Figure 1 is a perspective view of a loatable razor blade having twocutting edges.

p opening I 2.

Figure 2 is a transverse section along the line 2-'2V of Fig. 1.' f

Figure 3 shows a single-edge razor blade provided with a coating.

Figure 4 is a section along the line lLl-- of Fig.'3.

Figure 5 shows in section the head of a safety razor carrying a coatedsingle-edge razor blade.

Figure 6 shows in section a diierent razor carrying a coateddouble-edged blade.

The' sai'ety razor blade shown in Figures 1 and 2 comprises a steelportion I having two cutting edges 8 and 9, shoulders I6 and iI :and acentral opening I2 of the usual form. l

VThe steel portion 1 of the blade carries layers it to which are similarto each other in size and which are uniformly disposed in relation toeach other. Layers i3 'and I5 are situated one over the other onopposite sides of the steel portion of the blade and extend between thecutting edge 8 and the central opening I2. The layers ill and I6 arealso situated one below the other between the cutting edge 9 and the`central As shown in Figure l, the layers I3 to I6 leave `exposed thetwo cutting edges 8 and 9, as well as the edges of the central openingl2. These layers are rmly connected with the steel portion 'i of theblade by any suitable adhesive, which is not shown in the drawing,andwhich is water resistant.

Since the purpose of the layers I3 to ie is to serve as iioatsmaintaining the blade upon the surface of the water, their weight andtheir specific gravity should be so selected in relation Ato the steelportion of the blade, that the composite blade will not sink whendropped in water.

Vihile the layers I3 to I6 may consist oi a large number of differentmaterials, it was found desirable to employ cork particles united by asuitable adhesive of the type used in bottle closures. It was found thatcomparatively thin layers of this material will maintain the blade uponthe surface of the water.

The razor blade shown in Figures 3 and 4 has .a single cutting edge I'Iconstituting a part of a sheet of steel i8. The opposite edge of thesteel portion I3 is enclosed by the usual U-shaped metallic cover I9.

The razor blade includes two coatings 29 and 2l situated on oppositesurfaces of the steel portion I8 and firmly adhering thereto. The edgesof the layers 20 and 2l adjacent to the cutting edge II extend at adistance from this edge so that a part of the steel portion I8 isexposed.

The opposite edges of the layers 20 and 2I may be in engagement with theedges of the metallic cover I9.

In this construction, the layers 20 and 2I follow substantially closelythe outline of the blade portion I8 so that they also formrside grooves22 and 23 and a central groove 24 with which the steel portion I8 isprovided.

As already stated, the layers 20 and 2I should have a small specificgravity and may consist of cork particles bound by an adhesive.

Figure shows the arrangement of a floating single edge safety razorblade upon the head of a safety razor having a supporting member orguard 25 and a clamping member 26 which is pivoted at 21. A raisedportion 28 of the supporting member 25 extends through the centralopening 50 of a razor blade having a steel portion 5I and cork layers 52and 53. The clamping edge 29 of the clamping member 26 is in engagementwith the steel portion 5I of the blade close to its cutting edge 54.

Thus the cork layers 52 and 53 in no Way interfere with the clamping ofthe blade, since the clamping elements engage solely the steel portion5I of the blade.

Figure 6 illustrates the clamping of a floating double-edge razor bladeupon a safety razor of the type illustrated in my co-pending patentapplication Ser. No. 149,050, led June 19, 1937, which has become PatentNo. 2,264,323 of Dec. 2, 1941.

A safety razor of this type comprises a guard 30 which is carried by aframe element 3|, and which cooperates with two clamping members 32 and33 actuated by a threaded pivot 34 situated substantially in the middleof the safety razor and rotated by the turning of the razor handle. Theclamping members 32 and 33 move about supports 35 and 36, respectively,which are carried by the frame element 3 I.

The razor blade consists of a steel portion 31 having cutting edges 38and 39 and provided with four symmetrically disposed cork layers 40 to43.

These layers extend at a distance from the cer`1' tral opening of theblade and at a suillcient distance from the cutting edges 38 and 39 toenable the clamping edges 44 and 45 of the clamping members 32 and 33 toengage the metallic portion 31 of the razor blade. Thus, the layers 40to 43 do not interfere with the operation of the razor, since theclamping elements 32 and 33 of the razor engage the steel portion of theblade.

It is apparent that the specific illustrations shown above have beengiven by Way of illustration and not by way of limitation and that thestructures shown above are subject to Wide variation and modicationWithout departing from the scope or intent of the present invention. Allof such variations and modiilcations are to be included within the scopeof the present invention.

What is claimed is:

1. A blade for safety razors, comprising a metal portion having at leastone cutting edge, and a coating adhering to said metal portion and beingof light weight and capable of floating the blade in Water.

2. A blade for safety razors, comprising a cutting portion ofcomparatively great specific gravity and a layer adhering to saidcutting portion and being of comparatively small specific gravity tofloat the blade when in Water.

3. A blade for safety razors, comprising a steel portion having at leastone cutting edge, and at least one layer adhering to said steel portionand consisting of cork particles and an adhesive uniting said corkparticles.

4. A blade for safety razors, comprising a metal portion having at leastone cutting edge, and at least one layer adhering to said metal portionand being light in Weight and causing the blade to float in water, saidlayer terminating at a. distance from said cutting edge and exposing apart of said metal portion to enable a clamping element of a safetyrazor to engage said part.

GEORGES MONNET.

